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<FONT color="green">001</FONT>    package org.hackystat.sensorbase.resource.users;<a name="line.1"></a>
<FONT color="green">002</FONT>    <a name="line.2"></a>
<FONT color="green">003</FONT>    import java.util.Random;<a name="line.3"></a>
<FONT color="green">004</FONT>    <a name="line.4"></a>
<FONT color="green">005</FONT>    /**<a name="line.5"></a>
<FONT color="green">006</FONT>     * Provides a static function for generating new, unique passwords.<a name="line.6"></a>
<FONT color="green">007</FONT>     * Package private because only UserManager should be interacting with this class.<a name="line.7"></a>
<FONT color="green">008</FONT>     *  <a name="line.8"></a>
<FONT color="green">009</FONT>     * @author    Philip M. Johnson<a name="line.9"></a>
<FONT color="green">010</FONT>     */<a name="line.10"></a>
<FONT color="green">011</FONT>    class PasswordGenerator {<a name="line.11"></a>
<FONT color="green">012</FONT>      /**<a name="line.12"></a>
<FONT color="green">013</FONT>       * Eliminate letters/numbers that are easily confused, such as 0, O, l, 1, I, etc.<a name="line.13"></a>
<FONT color="green">014</FONT>       * Do NOT include the '@' char, because that is used to distinguish dirkeys from email addresses.<a name="line.14"></a>
<FONT color="green">015</FONT>       */<a name="line.15"></a>
<FONT color="green">016</FONT>      private static String[] charset = {<a name="line.16"></a>
<FONT color="green">017</FONT>        "A", "B", "C", "D", "E", "F", "G",<a name="line.17"></a>
<FONT color="green">018</FONT>        "H", "J", "K", "L", "M", "N",<a name="line.18"></a>
<FONT color="green">019</FONT>        "P", "Q", "R", "S", "T", "U",<a name="line.19"></a>
<FONT color="green">020</FONT>        "V", "W", "X", "Y", "Z",<a name="line.20"></a>
<FONT color="green">021</FONT>        "a", "b", "c", "d", "e", "f", "g",<a name="line.21"></a>
<FONT color="green">022</FONT>        "h", "i", "j", "k", "m", "n", "p",<a name="line.22"></a>
<FONT color="green">023</FONT>        "q", "r", "s", "t", "u", "v", "w",<a name="line.23"></a>
<FONT color="green">024</FONT>        "x", "y", "z",<a name="line.24"></a>
<FONT color="green">025</FONT>        "2", "3", "4", "5", "6", "7", "8", "9"};<a name="line.25"></a>
<FONT color="green">026</FONT>        <a name="line.26"></a>
<FONT color="green">027</FONT>      /** Length of the password. */<a name="line.27"></a>
<FONT color="green">028</FONT>      private static final int PASSWORD_LENGTH = 12;<a name="line.28"></a>
<FONT color="green">029</FONT>      <a name="line.29"></a>
<FONT color="green">030</FONT>      /**<a name="line.30"></a>
<FONT color="green">031</FONT>        * Creates and returns a new randomly generated password.<a name="line.31"></a>
<FONT color="green">032</FONT>        *<a name="line.32"></a>
<FONT color="green">033</FONT>        * @return  The random string.<a name="line.33"></a>
<FONT color="green">034</FONT>        */<a name="line.34"></a>
<FONT color="green">035</FONT>       public static String make() {<a name="line.35"></a>
<FONT color="green">036</FONT>         Random generator = new Random(System.currentTimeMillis());<a name="line.36"></a>
<FONT color="green">037</FONT>         StringBuffer password = null;<a name="line.37"></a>
<FONT color="green">038</FONT>         password = new StringBuffer(PasswordGenerator.PASSWORD_LENGTH);<a name="line.38"></a>
<FONT color="green">039</FONT>         for (int i = 0; i &lt; PasswordGenerator.PASSWORD_LENGTH; i++) {<a name="line.39"></a>
<FONT color="green">040</FONT>           password.append(charset[generator.nextInt(charset.length)]);<a name="line.40"></a>
<FONT color="green">041</FONT>         }<a name="line.41"></a>
<FONT color="green">042</FONT>         return password.toString();<a name="line.42"></a>
<FONT color="green">043</FONT>       }<a name="line.43"></a>
<FONT color="green">044</FONT>       <a name="line.44"></a>
<FONT color="green">045</FONT>       /** Ensure that no one can create an instance of this class. */<a name="line.45"></a>
<FONT color="green">046</FONT>       private PasswordGenerator() {<a name="line.46"></a>
<FONT color="green">047</FONT>       }<a name="line.47"></a>
<FONT color="green">048</FONT>    <a name="line.48"></a>
<FONT color="green">049</FONT>    }<a name="line.49"></a>




























































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